388641370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{49009}}^1$

素因数の和:49090

約数の個数: 32

約数和(自身を含む): 765732240

約数和(自身を除く): 377090870

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 49009, 98018, 245045, 490090, 637117, 1274234, 2989549, 3185585, 5979098, 6371170, 14947745, 29895490, 38864137, 77728274, 194320685, 388641370]

約数ペア:

[(1, 388641370), (2, 194320685), (5, 77728274), (10, 38864137), (13, 29895490), (26, 14947745), (61, 6371170), (65, 5979098), (122, 3185585), (130, 2989549), (305, 1274234), (610, 637117), (793, 490090), (1586, 245045), (3965, 98018), (7930, 49009)]